Storage tank



y 1930. E. B. TOLMAN, JR 1,760,094

STORAGE TANK Filed Jan. 18, 1928 5 Sheets-Sheet 1 A mg 7, 1930. E. B.TOLMAN, JR 1,760,094

STORAGE TANK Filed Jan. 18 1928 5 Sheets-Sheet 2 3 4 F-fi f rfi u III Fy 1930. E. B. TOLMAN, JR 1,760,094

STORAGE TANK Filed Jan. 18, 1928 3 Sheets-Sheet 5 Patented May 27, 1939This invention pertains to the general class of receptacles andparticularly to a storage tank. An object of applicants invention is theproduction of a tank capable of complete- 5 ly discharging its contents.A furtl er object of applicants invention is the production of a novelgate construction for opening and closing the discharge opening of saidtank. A further object of applicants invention is the production of atank simple to erect, of low cost, easy to manufacture, durable andsatisfactory for its intended purpose. other objects and advantages ofthe construction herein shown and described will be obvious to thoseskilled in the art from the disclosure herein given.

The tank disclosed in the drawings is intended as a storage ta cause agreat deal of abrasion and corrosion. This applies particularly to ash,high sul phur coal, coke, coke breeze and the like. Applicants tank isconstructed of a frame work of steel to which are attached a pluralityof overlapping plates. readily knocked down and transported from placeto place, easily erected and replacement of plates is readily effected.ine material used in constructing the plates is preferably cast iron.However, it is obvious that other as suitable materials may be used.

is so constructed that the material of the plates only comes in contactwith the contents of the tank. The steel structure is employed to holdthe Jlates in place.

To this end my invention consists in the novel construction,arrangemei'lt and combination of parts herein shown and described andmore particularly pointed out in the claim.

In the drawings, wherein like reference characters lndicate like orcorresponding parts Fig. 1 is a front elevation of applicants noveltank;

Fig. 2 is a top plan view of the same; F1g. 3 1s a section on line 3-3of Fig. 4;

and

EDGAR B. TOLMAN, 53., OF CHICAGO, ILLINQIS STORAGE TANK Applicationfiled January 18, 1928. Serial No. 247,680.

Many

1 for materials which The tank is respect to each other.

obvious that the tank The tank form or shape.

to each gate.

ing upright corner posts 2, 3, 4 and 5. Uprights 2 and 5 support a beam6 at the tops thereof. Uprights 3 and l support a beam 7 at the topsthereof. Suitable bracing may be employed as desired. Beams 6 and 7support cross beams 8 and 8. The tank proper is made up of a pluralityof upright plate supporting members 9 which are preferably of structuralsteel such as I-beams. bottom of the tank the plate supporting membersconverge as shown at 10, thus forming a discharge opening 11 at thebottom of the tank. As previously set forth, the members 9 and 10 may beof any standard structural shape, but are preferably limited to ashapehaving a transverse web such as a T-shape or I-shape. The platesupporting members of the roof shown at 12 in Fig. 2 are preferablyT-shaped. Any conventional means may be employed for attaching themembers 9 and 10 to the framework as well as for connecting the members9 and 10 to each other and the members 9 and 1.2 to each other. 13 ofthe tank are preferably of angle iron having webs forming an angle ofwith v The form of tank shown in the drawing is merely for the purposeof illustrating applicants invention. it

may take any desired At the The corners At the bottom of the tank-beamslet and 15 set ired to uprights or corner posts 2-5 and v l,respectively, support a cross beam I ross beam 16 supports a pluralityof brackets 17 which form. pivot points for gates 18, 19 and 20. Thegates are made up of arms 21 and preferably an arcuate face plate 22. Anoperating lever 23 is attached The 18 and 20 are of similar size andconstruction. similar to gates 18 and 20 with the exception Gate 19 isthat arms 21 thereof may be slightly longer,

thereby allowing gate 19 to slightly overlap the edges of gates 18 and20 as shown in Fig.

edges of thearcuate faces to abut one another.

4.. However, arms 21 and 21 may be of the same length if desired,thereby allowing the any other suitable shape.

pivot point of each gate. It is thus readily seen that either of gates18, 19 and 20 may be opened individually or any or all of the gates maybe opened as desired. When all of the gates are open, it is readily seenthat the discharge opening 11 at the bottom of the tank has nothingtherein to obstruct the dis charge of the contents of the tank. Thisparticular gate construction is highly efilective for its intendedpurpose. The entire bottom oi the tank may be opened, said opening being entirely unobstructed, thus preventing arching and sticking of thematerial and a complete discharge of the entire contents of the tank isassured. Each gate is operated by means of its lever 23. A chain, rod,cable or other device may be attached to the outer end of lever ifdesired. Beams 41 and 42 supp 'ted by brackets on beams 14 and 15 assistin supporting the plate supporting members 10 at the opening 11.

In Figs. 1 and 2 the tank is shown with a vent l0. he bottom edges ofthe vent 40 are rabbeted similar to a plate. Vent 40 is merelysubstituted in place of the plate on the roof. It is readily seen that aplate anywhere in the structure may be removed and any sort of devicesuch as a cast iron manhole may be substituted in place thereof, samefitting in as part of the structure.

The bottom of the tank may be wedge shape as shown in the drawing orsame may be of The steel frame work adds strength to the structure.However, no steel comes in contact with the contents of the tank. Thesloping bottom gives maximum discharge capacity. The gates extend thefull length of the tank which insures positive discharge by gravity. Thegates may be of any number as will be appreciated by persons skilled inthe art.

The tank may also be constructed With a bottom sloping at an anglecompletely across the tank, and thedischarge opening and the gates forsame in this case would be at a bot tom side edge of the tank.

Having thus described my invention, it is obvious that variousimmaterial modifications may be made in the same Without departing fromthe spirit of my invention; hence 1 do not wish to be understood aslimiting myself to the exact form, construction, arrangement andcombination of parts herein shown and described or uses mentioned.

hat I claim as new and desire to secure by Letters Patent is:

In a receptacle of the kind described, a pair of opposite side wallsconverging to form a bottom, said converging side walls terminating toform a discha' opening, a plurality of laterally arranged ates for saiddischarge opening, said gates individually operable and having adjacentmargins over lapping, said gates supported by means tree of saiddischarge opening whereby when all of said gates are open the flow fromsaid discharge opening is unobstructed.

In testimony whereof, I have hereunto signed my name.

EDGAR B. TOLMAN, JR.

